Ordinary and Partial Differential Equations - Agarwal, Ravi P.; Axler, Sheldon; Capasso, Vincenzo; edited by Sheldon Axler, Vincenzo Capasso, Carles Casacuberta, Angus J. Macintyre, K.A. Ribet, Claude Sabbah, Endre SÃ¼li, Wojbor Andrzej Woyczynski; Casacuberta, Carles; O'Regan, Donal (Springer New York, 2009)